Amusing

This random question was thrown up while i was updating my profile but apparently you can only use 150 characters to answer which was simply not enough, so I thought I'd post it for your amusement;

If you drive on a parkway why don't they make the whole plane out of that?

A park-what? now this depends on what kind of plane your talking about really doesn't it? Now there's two schools of thought on that one; first is all planes are made out of jelly, the second depends on which plane of existence you tend to spend most of your time and the third is irrelevant unless you're Swiss jah...